EP 3195063 B1 20190501 - DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
Title (en)
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
Title (de)
ENTWICKLUNGSVORRICHTUNG UND BILDERZEUGUNGSEINRICHTUNG
Title (fr)
DISPOSITIF DE DÉVELOPPEMENT ET APPAREIL DE FORMATION D'IMAGE
Publication
Application
Priority
- JP 2014188794 A 20140917
- JP 2015004422 W 20150831
Abstract (en)
[origin: WO2016042717A1] A developing device, including: a developer containing toner and carrier; and developer bearer configured to have surface thereof bear the developer and endlessly move, and to develop latent image over surface of latent image bearer by supplying toner in developer to latent image in developing region facing the latent image bearer, wherein carrier contains fine particles, value X in volume resistivity R (=10X) (Ω・cm) of carrier is 11.5－16.0, developer bearer includes: magnetic field generating unit including a plurality of magnetic poles; and developing sleeve having a cylindrical shape enclosing magnetic field generating unit, and configured to bear developer over outer circumferential surface of cylindrical shape by magnetic force of the magnetic field generating unit and perform surface moving by rotating relative to developing device body, and developing device includes developing sleeve voltage applying unit configured to apply AC component-containing voltage to developing sleeve.
IPC 8 full level
G03G 15/09 (2006.01); G03G 9/10 (2006.01); G03G 9/113 (2006.01); G03G 15/06 (2006.01); G03G 15/08 (2006.01)
CPC (source: EP RU US)
G03G 9/1136 (2013.01 - EP US); G03G 9/1139 (2013.01 - EP US); G03G 15/065 (2013.01 - EP US); G03G 15/09 (2013.01 - RU); G03G 15/0907 (2013.01 - EP US); G03G 15/0928 (2013.01 - EP US)
Citation (examination)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016042717 A1 20160324; CN 106716260 A 20170524; CN 106716260 B 20200221; EP 3195063 A1 20170726; EP 3195063 A4 20170920; EP 3195063 B1 20190501; JP 2016066067 A 20160428; RU 2664773 C1 20180822; US 10197948 B2 20190205; US 2017248871 A1 20170831
DOCDB simple family (application)
JP 2015004422 W 20150831; CN 201580049722 A 20150831; EP 15842282 A 20150831; JP 2015179949 A 20150911; RU 2017111194 A 20150831; US 201515511291 A 20150831